| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 4.18 | -0.13 |
| Feb | 3.29 | 3.30 | -0.01 |
| Mar | 3.66 | 3.69 | -0.03 |
| Apr | 3.66 | 3.79 | -0.13 |
| May | 4.56 | 4.72 | -0.16 |
| Jun | 4.67 | 4.85 | -0.18 |
| Jul | 3.01 | 2.90 | 0.11 |
| Aug | 3.43 | 3.83 | -0.40 |
| Sep | 3.83 | 3.80 | 0.03 |
| Oct | 4.63 | 4.68 | -0.05 |
| Nov | 4.18 | 4.56 | -0.38 |
| Dec | 4.46 | 4.41 | 0.05 |
47.43 | 48.71 | -1.28 |